ORACLE DATA SHEET Oracle Communications Session Router
An advanced session routing proxy (SRP), Oracle Communications Session Router overcomes the challenges inherent in routing large numbers of Session Initiation Protocol (SIP)–based voice, video, instant messaging, and multimedia sessions within and between access and interconnect networks of service providers.
First class communications delivery Overview APPLICATIONS • Core SIP session routing for VoIP, Oracle Communications Session Router provides high-performance SIP routing with VoLTE, RCS scalable routing policies that increase overall network capacity and reduce costs. It • Class 4 routing plays a central role in Oracle’s open session routing (OSR) architecture and helps • SIP interconnect load balancing service providers build a scalable, next-generation signaling core for SIP-based • Wholesale and IPX transit services services. • Routing services: least cost routing, Oracle Communications Session Router is offered on purpose-built Acme Packet 3820, number portability, CNAM delivery 4500, 4600, 6100, and 6300 platforms. It is also available as a software-only application
KEY FEATURES or as a Virtualized Network Function (VNF) on several Oracle and third-party servers. • High-performance SIP routing On all platforms it leverages Acme Packet Operating Software (Acme Packet OS) to • Extensive and flexible routing policies offer industry-leading SIP routing performance, routing control and deployment flexibility,
• Local and external routing database openness and interoperability, high availability (HA), and cost effectiveness. support • Programmable interworking and Services and Applications mediation Oracle’s Open Session Routing architecture features SRPs and session border • Net-SAFE© security and overload control controllers (SBCs) working in conjunction with an ecosystem of routing database products and services from Oracle partners. • Compact and scalable platforms
• Available as a fully orchestrated An evolutionary leap over distributed routing architectures that use mobile switching Virtual Network Function (VNF) centers (MSCs) and soft-switches, OSR dramatically boosts network efficiency and • Carrier-class high availability intelligence, while reducing capital and operating expenditures.
K E Y BENEFITS Oracle Communications Session Router resides in the next-generation signaling core • Reduces complexity and cost of and directs traffic to and from other SIP signaling elements in the network, including delivering SIP multimedia services MSCs, Class 4 and 5 soft-switches, Call Session Control Function (CSCF) servers, and • Enables cost-effective network access and interconnect SBCs. scalability
• Mitigates risk and protects network Oracle Communications Session Router provides SIP routing for the following uptime applications: • Provides rapid interoperability and Core session routing for Voice over IP (VoIP), Rich Communications Services (RCS), faster time to market
Voice over Long Term Evolution (VoLTE), and Voice over WiFi
Class 4 routing—interregional and trans-continental network
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External network selection—Public Switched Telephone Network (PSTN) and IP
interconnects
Routing services—least cost routing (LCR), number portability, and calling name (CNAM) delivery
Wholesale / IP Exchange (IPX) transit services
Figure 1: Oracle Communications Session Router support multiple SIP routing applications
IP Multimedia Subsystem Compliance
In Third Generation Partnership Project (3GPP) IP Multimedia Subsystem (IMS)
networks, Oracle Communications Session Router fulfills the role of the Breakout Gateway Control Function (BGCF) to select the optimum IP or time-division multiplexing
(TDM) interconnect next hop for off-network traffic, in addition to the proper Serving Call Session Control Function (S-CSCF) for incoming sessions. In this role, Oracle
Communications Session Router is able to offload the CSCF core by receiving session signaled directly from an external network via a Media Gateway Controller Function
(MGCF) or an Interconnect Border Control Function (I-BCF), and forward to the appropriate next hop.
High-Performance SIP Routing and Capacity
Oracle Communications Session Router is supported by the industry’s most comprehensive and scalable portfolio of hardware platforms, in addition to carrier-grade
third-party server platforms—meeting a wide range of capacity and performance requirements. Oracle Communications Session Router is scalable to 150,000 messages per second or 320,000 sessions per system.
On every platform, Acme Packet OS provides the same powerful SIP routing features
with compelling price/performance measurements. The wide platform portfolio provides flexibility to match the performance and price points for individual environments.
In comparison with session-stateful, soft-switch-based approaches, the high- performance Oracle Communications Session Router reduces CapEx and OpEx as
service providers evolve to next-generation VoIP and IMS networks. Delivered in a variety of compact form factors, Oracle Communications Session Router reduces
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NETWORK SESSION DELI V E R Y A N D cabling, rack space, and power consumption to drive down OpEx. High-performance CONTROL INFRASTRUCTU RE SIP processing also results in fewer elements to purchase, provision, and manage— Oracle’s network session delivery and minimizing CapEx. control infrastructure enable enterprises and service providers to manage the Routing tables may be centralized in external databases, distributed to each Oracle many challenges in the delivery of IP Communications Session Router, or used in combination to create a dynamic, flexible voice, video, and data services and solution. Local route tables can support up to 20 million routes. Larger tables for applications. Service provider solutions dynamic, intra-network or global routing data are supported using external high-capacity are deployed at network borders and in databases or services from Oracle ecosystem partners. the IP service core to help fixed-line, mobile, wholesale, and over-the-top Platform choices for Oracle Communications Session Router provide tremendous service providers optimize revenues deployment flexibility and facilitate network evolution from PSTN to IP network–focused and realize long-term cost savings. In connectivity and overall network growth the enterprise, session delivery infrastructure solutions seamlessly Hardware Platforms connect fixed and mobile users, Oracle Communications Session Router operates on Acme Packet 3820, Acme Packet enabling rich multimedia interactions 4600 and Acme Packet 6000 Series (6100 and 6300) platforms, leveraging the latest and automating business processes for multicore processing and technology advancements, to deliver scalable performance in significant increases in productivity and small to very large networks. These platforms deliver high-performance processing of efficiency. signaling messages matched with dedicated hardware, for processor-intensive functions The following Oracle products are part such as denial-of-service (DOS) and distributed denial-of-service (DDoS) attack of the network session delivery and prevention or encryption. For core session routing applications requiring the highest SIP control infrastructure: message processing capacity and performance, Oracle Communications Session • Oracle Communications Session Router also operates on Oracle’s carrier-grade Netra X3-2 and Netra X5-2 servers as Border Controller well as selected third-party servers. • Oracle Communications Session Router Virtualization
• Oracle Communications Subscriber- Oracle Communications Session Router may be run as a Virtual Network Function Aware Load Balancer (VNF). Supported hypervisors include Oracle Virtual Machine (OVM), Kernel-Based • Oracle Communications Unified Virtual Machine (KVM), and VMware ESXi. As a VNF, Oracle Communications Session Session Manager Router may be deployed as a standalone instance or within an orchestrated Network • Oracle Communications Mobile Security Gateway Function Virtualization (NFV) environment under control of Oracle Communications Application Orchestrator (OCAO) acting as a VNF-Manager, and offers the same level • Oracle Communications Interactive Session Recorder of security, reliability, and routing capability as it does on purpose-built platforms, and adds to network flexibility and agility. As a VNF, Oracle Communications Session Router • Oracle Communications Application Orchestrator runs, among others, on Oracle Netra X5-2 servers.
• Oracle Communications Core Session Manager Features and Functions • Oracle Enterprise Session Border Oracle Communications Session Router provides compelling features that deliver a Controller number of key benefits to service providers building VoIP and IMS networks: • Oracle Communications Session Delivery Manager product family A more streamlined and scalable network • Oracle Communications Operations Lower total cost of ownership Monitor Improved network resilience • Acme Packet 3820 Faster time to market • Acme Packet 4600 Vendor flexibility • Acme Packet 6000 Series These features deliver superior functionality for routing, interoperability and security, and overload control. Oracle Communications Session Router also provides carrier-class HA across all Oracle hardware and third-party server platforms.
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Extensive Routing Control
Oracle Communications Session Router provides comprehensive and flexible control for
routing and forwarding SIP messages. It determines the next signaling hop using
selection criteria that can be derived from a number of sources.
Routing information can be selected using multiple processing rules and can leverage
regular expressions to match, compare, and extract routable information from both
standard and non-standard sources.
The source of routing information is SIP message content, including called number,
CNAM, ingress realm, egress realm, time, codec, SIP method, cost, trunk group, and
proprietary headers.
Oracle Communications Session Router leverages routing policies on its local route
table (LRT) in addition to external routing databases. The external databases enable
routing decisions for the PSTN and IP networks and include local number portability
(LNP), CNAM, Local Exchange Routing Guide (LERG), emergency services (Enhanced
911), LCR, inter-provider private route tables, and public databases.
Oracle Communications Session Router provides multistage routing to support complex
routing decisions and enforce business logic. With nested local route policy lookups, the
results of the first lookup determine the next lookup, and ultimately the next hop
destination. Following route selection, SIP messaging may be further modified to
influence behavior in the network.
Oracle Communications Session Router also monitors SIP elements and E.164 Number
Mapping (ENUM) database servers for availability and reroutes traffic upon failure to
provide service continuity.
Figure 2: the Oracle Communications Session Router system architecture leverages routing policies on its local route table in addition to external routing databases
Load Balancing
Routing can be further enhanced with load balancing to optimize network performance. The result can be a unique element from a group of session agents or a recursive set of targets from the selected group.
The next signaling hop can be selected based on a variety of load-balancing
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techniques, including:
Hunt Least busy Lowest sustained rate Proportional Round robin
Interworking and Mediation
Oracle Communications Session Router provides interworking capabilities to provide rapid interoperability between vendors and various SIP elements. The normalization and mediation functionality accelerates time to market, as vendors and core equipment are added and changed over time. This interworking capability also enables service providers to choose best-of-breed elements and to integrate acquisitions or new vendors into the network more rapidly.
All SIP message headers can be modified, added, or removed based on specified criteria as messages flow through Oracle Communications Session Router. This dynamic manipulation provides a powerful interoperability tool that is not dependent on feature enhancements or software updates.
The interworking and mediation functions include:
SIP, SIP with Encapsulated ISDN User Part (SIP-I), and SIP for Telephones (SIP-T) protocol mediation and normalization Response code translations User Datagram Protocol (UDP), Transmission Control Protocol (TCP), and Stream Control Transmission Protocol (SCTP) transport layer interworking
Call Admission and Overload Control
Leveraging Oracle’s proven Net-SAFE© security framework, dynamic signaling rate limiting protects Oracle Communications Session Router and other elements from DoS attacks or non-malicious overloads. Incoming messages that exceed configured maximums based on a variety of constraint criteria are rejected. The Oracle Communications Session Router overload control features help ensure core network and overall service availability.
Accounting Oracle Communications Session Router provides accounting via call detail records (CDRs) or Remote Authentication Dial-In User Service (RADIUS) for session-based billing and settlement, in addition to traffic planning and performance management.
Carrier-Class High Availability
Across all hardware and server platform options, Oracle Communications Session Router supports an HA configuration with active and standby units. The SIP message state and peer state are check-pointed between the active and standby units to ensure uninterrupted service in the event of a unit failure.
Management
Oracle Communications Session Delivery Manager product family—a fully integrated, extensible management system—is used to provision Oracle Communications Session
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Router. Oracle Communications Session Delivery Manager centralizes and automates the management and distribution of local route tables to Oracle Communications Session Routers. It can also be managed by command-line interface (CLI) and Telnet. Secure File Transfer Protocol can be used to update local route tables with XML. RADIUS is used for accounting and Simple Network Management Protocol (SNMP) and Syslog for monitoring.
Oracle Communications Session Router is also supported by Oracle Communications Session Monitor product family, a real-time monitoring and troubleshooting software that provides network intelligence for service provider networks.
Flexible Operational Modes Oracle Communications Session Router supports four modes, providing multiple levels of session statefulness that balance interoperability, security, and accounting features with performance, as outlined in the table.
MODES OF SESSION STATEFULNESS SUPPORTED BY ORACLE COMMUNICATIONS SESSION ROUTER
Mode Performance Signaling State Topology Overload Load Balancing SIP Accounting Hiding Control Interworking Stateless Highest Initial invite only No No No No No
Transaction Through initial Hunt, lowest Higher No CPS only Yes No Stateful setup sustained rate
Hunt, round robin, and Session Through session CPS and proportional, High No Yes Yes Stateful termination sessions least busy, lowest sustained rate
Hunt, round robin, and Dialog Through session CPS and proportional, High Yes Yes Yes Stateless termination sessions least busy, lowest sustained rate
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TECHNICAL SPECIFICATIONS
Feature Details RFC 3261 SIP proxy, SIP relay
SIP interface support Mi, Mj, Mk, Mx
3GPP compliance BGCF
SIP protocols SIP, SIP-I, SIP-T, and interworking
Transport protocols UDP, TCP, SCTP, and interworking
IP protocols IPv4, IPv6
Resolution and translation protocols ENUM, DNS
Supported platforms Acme Packet 3820, 4500, 4600, 6100, 6300, Oracle Netra X3-2, Netra X5-2, and select third-party servers
Management Oracle Communications Session Delivery Manager product family, CLI, Telnet, SFTP, XML, RADIUS, SNMP, and Syslog
OCSR-VNF SPECIFICATIONS
Feature Details Oracle Virtual Machine (OVM), Hypervisors Kernel-based Virtual Machine (KVM), or VMware ESXi
Oracle Communications Application VNF Manager Orchestrator
3 vCPU Cores, 4 GB RAM, 48 GB HDD, Minimum Required Configuration 8 vNICs
C O N T A C T U S For more information about Oracle Communications Session Router, visit oracle.com or call
+1.800.ORACLE1 to speak to an Oracle representative.
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